When police were able to get inside the apartment of Kevin Robert Holroyd, they found the suspected killer dead in a gas-soaked apartment, according to the News Herald.

Authorities were searching for Holroyd, 49, in connection with a murder Tuesday morning in Santa Rosa Beach in Walton County, according to the sheriff’s office.

When they attempted to access his apartment building Tuesday afternoon, authorities said Holroyd opened fire on officers, sparking an intense exchange of gunfire, then a standoff that lasted several hours.

Update 4:10 p.m. EDT:

Investigators were searching the Briarwood Apartments after several rounds of gunfire were exchanged Tuesday afternoon between shooting suspect Kevin Robert Holroyd and Bay County first responders.

Bay County authorities believe Holroyd is involved with the shooting death of a 30-year-old man in Walton County Tuesday morning, the News Herald reported.

Investigators had been watching Holroyd’s apartment when they received reports of a gas leak at the building, according to the News Herald. When they tried to check the building, the suspect opened fire.

Update 3:50 p.m. EDT: The Walton County Sheriff’s Office has confirmed the standoff in Panama City is related to a fatal shooting at a home in Santa Rosa Beach.

The victim has been identified as Clinton Street. Street was 30 years old and was killed at a house on White Heron Drive. There’s no word on what led to Street’s death or who the suspect is, but the sheriff’s office said in a tweet that the two incidents are related.

Update 2:40 p.m. EDT: Walton County sheriff’s deputies confirmed that a shooting in Panama City, described Tuesday afternoon by police as active and ongoing, appeared to be connected to a suspicious death reported earlier Tuesday in Santa Rosa Beach.

Authorities did not immediately elaborate on the connection.

﻿Update 2:33 p.m. EDT: Police described the incident as an ongoing “active shooter situation,” according to multiple reports.

Caitlin Lawrence, public information officer for Panama City, told the News Herald that authorities believe the suspect was still on the scene Tuesday afternoon.

﻿Original report: Witnesses told WJHG that they heard more than 50 shots.

President Donald Trump on Monday ordered the expulsion of 60 Russian diplomats and the closure of the country’s consulate in Seattle in response to an attack earlier this month on a former spy in the United Kingdom.